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采用高温固相法合成了钙钛矿(YAlO_3:Gd~(3+)/Sb~(3+))荧光粉体,并使用荧光光谱仪对荧光粉体(YAlO_3:Gd~(3+)/Sb~(3+))发光性能进行表征。结果表明:使用高温固相法能够得到分散均匀的,颗粒大小一致的荧光粉。在254 nm波长激发下,掺杂Gd~(3+)/Sb~(3+)的YAlO_3荧光粉体系得到425 nm左右(紫光)宽带发射光谱,且蓝光强度随Gd~(3+)与Sb~(3+)的掺杂浓度增加先升高后降低,最后,通过在254 nm与274 nm激发下比较荧光粉体(YAlO_3:Gd~(3+)/Sb~(3+))发光性能的差异,对其能量传递机制进行了可能性分析。
The perovskite (YAlO_3: Gd ~ (3 +) / Sb ~ (3 +)) phosphor was synthesized by solid state reaction at high temperature. The fluorescence spectra of YAlO_3: Gd ~ (3 +) / Sb ~ (3+)) luminescent properties were characterized. The results show that: using high-temperature solid-phase method can be uniformly dispersed, the particle size of the phosphor. Under the excitation of 254 nm, the broad band emission spectrum of about 425 nm (violet) was obtained with YAlO_3 phosphor doped with Gd 3+ / Sb 3+, The doping concentration of ~ (3 +) firstly increases and then decreases. Finally, the luminescent properties of YAlO_3: Gd ~ (3 +) / Sb ~ (3+) phosphor were compared at 254 nm and 274 nm excitation The possibility of the energy transfer mechanism was analyzed.